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42d4d3baac
BL2_AT_EL3 is an overloaded macro which has two uses: 1. When BL2 is entry point into TF-A(no BL1) 2. When BL2 is running at EL3 exception level These two scenarios are not exactly same even though first implicitly means second to be true. To distinguish between these two use cases we introduce new macros. BL2_AT_EL3 is renamed to RESET_TO_BL2 to better convey both 1. and 2. Additional macro BL2_RUNS_AT_EL3 is added to cover all scenarious where BL2 runs at EL3 (including four world systems). BREAKING CHANGE: BL2_AT_EL3 renamed to RESET_TO_BL2 across the repository. Change-Id: I477e1d0f843b44b799c216670e028fcb3509fb72 Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com> Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/*
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* Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <common/debug.h>
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#include <common/desc_image_load.h>
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#include <drivers/arm/sp804_delay_timer.h>
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#include <lib/fconf/fconf.h>
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#include <lib/fconf/fconf_dyn_cfg_getter.h>
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#include <plat/arm/common/plat_arm.h>
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#include <plat/common/platform.h>
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#include <platform_def.h>
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#include "fvp_private.h"
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void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1, u_register_t arg2, u_register_t arg3)
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{
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arm_bl2_early_platform_setup((uintptr_t)arg0, (meminfo_t *)arg1);
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/* Initialize the platform config for future decision making */
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fvp_config_setup();
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}
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void bl2_platform_setup(void)
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{
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arm_bl2_platform_setup();
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/* Initialize System level generic or SP804 timer */
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fvp_timer_init();
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}
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/*******************************************************************************
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* This function returns the list of executable images
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******************************************************************************/
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struct bl_params *plat_get_next_bl_params(void)
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{
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struct bl_params *arm_bl_params;
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const struct dyn_cfg_dtb_info_t *hw_config_info __unused;
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bl_mem_params_node_t *param_node __unused;
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arm_bl_params = arm_get_next_bl_params();
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#if !RESET_TO_BL2 && !EL3_PAYLOAD_BASE
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const struct dyn_cfg_dtb_info_t *fw_config_info;
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uintptr_t fw_config_base = 0UL;
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entry_point_info_t *ep_info;
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#if __aarch64__
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/* Get BL31 image node */
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param_node = get_bl_mem_params_node(BL31_IMAGE_ID);
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#else /* aarch32 */
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/* Get SP_MIN image node */
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param_node = get_bl_mem_params_node(BL32_IMAGE_ID);
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#endif /* __aarch64__ */
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assert(param_node != NULL);
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/* get fw_config load address */
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fw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID);
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assert(fw_config_info != NULL);
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fw_config_base = fw_config_info->config_addr;
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assert(fw_config_base != 0UL);
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/*
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* Get the entry point info of next executable image and override
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* arg1 of entry point info with fw_config base address
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*/
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ep_info = ¶m_node->ep_info;
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ep_info->args.arg1 = (uint32_t)fw_config_base;
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/* grab NS HW config address */
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hw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, HW_CONFIG_ID);
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assert(hw_config_info != NULL);
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/* To retrieve actual size of the HW_CONFIG */
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param_node = get_bl_mem_params_node(HW_CONFIG_ID);
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assert(param_node != NULL);
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/* Copy HW config from Secure address to NS address */
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memcpy((void *)hw_config_info->secondary_config_addr,
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(void *)hw_config_info->config_addr,
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(size_t)param_node->image_info.image_size);
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/*
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* Ensure HW-config device tree committed to memory, as there is
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* a possibility to use HW-config without cache and MMU enabled
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* at BL33
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*/
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flush_dcache_range(hw_config_info->secondary_config_addr,
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param_node->image_info.image_size);
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param_node = get_bl_mem_params_node(BL33_IMAGE_ID);
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assert(param_node != NULL);
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/* Update BL33's ep info with NS HW config address */
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param_node->ep_info.args.arg1 = hw_config_info->secondary_config_addr;
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#endif /* !RESET_TO_BL2 && !EL3_PAYLOAD_BASE */
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return arm_bl_params;
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}
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